Weighing apparatus



Jan; 25, 1927.

F. C. C. VOGEL WEIGHING APPARATUS Filed Feb. 5, 1925 2 sheetssheet 1Jan. 25 ,1927.

I F. .c. c. VOGEL WEIGHING APPARATUS Filed Feb. 5, 1925 2 Sheets-Sheet 2Patented Jan. 25, 1927.

g STATES PATENT OFFIJGE.

FREDERIK CARL CHRISTIAN VOGEL, OF HAMBURG, GERMANY, .ASSIGNOR .TO, THE

' FIRMVOGEL & HALKE F HAMBURG-{GERMANYJ WEIGHING' APPARATUS.

" Applioation fii'ed-Fehruaryi; 1925, Serial N 017,172; and inGermanyOctober 24, 1924.

1 The present invention relates'to. a weigh ingv apparatusand': moreparticularly to weighing-apparatus of the kind in which theindic'ator?is" operated by an intermediate I driving mechanism that. is. onlyput'into operationtat the-"proper time by a manually operatediitrip" gear; thus' preventing the =indi= eating mechanism: from being strained bytheactionofth'e load", which would result,

evenflaiter aishortperiod, in material'wear and tear and consequentlyinaccurate weighings. i a A Weighing; apparatusof thiskind ha been shownand described in 'my U. S.

Patent 1,553,651 which comprises an indicating mechanism that isnormally locked and when tripped isoperated by the said intermediatedriving mechanism. In this said weighing apparatus the indicatingmechanism: is provided witlr an oscillatory lever, which operates theindicating memb'erand is locked inzero-position by abolt.Moreoverth'eoscillatory lever'is connected with the" connectingrodoperated 'upon by the platform of 'the scale by the intermediary oiayielding-spring,- which upon the ap paratus being loaded and theoscillatory lever :being unl ')cked, rocks the latter" until supportedby the connecting rod adjusted bythe'loadl Forholding th'e'lever inposition, a slidable' bolt is provided which, by a hand lever and bytheaid of an intermediate bell crank lever, canbe retracted'to releasethe oscil latory lever, which" bolt thereupon is held in releasedposition of the lever by a latch; Thi-s device is somewhat inconvenientand particularly sincetheslidable bolt and the bell crank leven engagingthe bolt is sub- 40 ject'to friction and'jamming.

To avoid these drawbacks and moreover tosimplify-"th'e apparatus,according to the present invention a" locking lever is employed-in placeof the locking bolt described in my: said patent. This'locking lever "isprovided with a'- tooth -adapted to enter a notch i in a locking diskfirmly mounted "on the spindle oi the indexpointer; thus indirectlylocking the oscillatory lever'and at the same time holdingthe indexpointer in zero position.

In the drawings a Fig. 1" is a plan of the upper part'of theweighingapparatus including the indicating mechanism, the coverbeing-removed and the other parts being broken away.

Fig; 2 is a similar plan showingthe'parts inthe position assumedwhen'the apparatus is loaded by a person and'the hand-lever is operated. V i

Fig. 3 is a vertical sectional View through the upper part of'th'eweighing apparatus Similar to'the construction sh'own in my said patenta lever- 9 "is pivoted'ona pin 8 and connected by the aid eta-spring 7-with a connecting rod 2 engaged by a platform.

A stud 13 serves to connect the lever 9 with a rack 10 engaging apinion-10 on adial spindle 11.

A- locking disk a firmly attach'ed' to the dial spindle 11 is providedwith a notch 0n itsrim, a tooth b on a two-armed locking lever cengaging this notch in the zero posi-' tion ofthe index pointer 14.The'locking lever c is pivoted to a bolt (Z and is normally drawntowards the locking disk at by a spring 6. On the tooth b engaging thenotch in the disk a the lever 9' is locked in position; To the boltd" isalso pivotally connected the manually operable lever 20, which isprovided with a pocket f opening out with its lower endabove the'coinslot 37 and its mouth coinciding with the coin chute g having'the usualinsertion slot. The coin within the pocket f will be held on one sidebythe edge of the hand leverQO'andon the other side by the cranked arm hof'the locking lever 0. The arm 7b can preferably be made adjustablewith respectto its distance from the hand lever 20 to allow forvariations in the diameter ofthe coin. The-'wallsof the pocket 7 are:provided with slots z.-

Another cranked arm is is attached to the locking lever c, the end ofthis arm bemg adapted to engage the slots 2' of the inner wall of thepocket. The long arm of the locking lever c has a pin y against whichthe end of one of the arms of a bell crank lever m bears. This arm ofthe lever m 1s attached to the bolt a while the other arm is attached toa spring 0. The bell crank lever m is held in this position with respectto the pin 1' by the lever 9 in the same manner as the latch mentionedin the said patent.

A fiat rubber brake block 19 is connected to the pocket 7 by a springarm 17 and is adapted to bear against the locking disk a as soon as thehand lever 20 is operated.

The operation of this form of weighing apparatus is as follows.When theplatform is weighted by a person standlng thereon, the lever 9 cannotfollow the movement of the connecting rod, since it is held back by thetooth b of the locking lever 0 engaging the locking disk (L. hen theperson weighing himself moves the hand lever 20, after having previouslyinserted a coin into the coin chute g, the brake block 27 is pressedagainst the locking disk a and by the intermediary of the coin withinthe pocket 7 a movement of the locking lever 0 is caused by the coinstriking against the arm 70. The tooth b will thereupon release thelocking disk a and while the hand lever 20 is rotated, the brake block protates the locking disk a by rolling or rocking there on, owing towhich movement the lever 9 is also rocked to a certain extent. The bellcrank lever on is thus released and is now moved into such a position bythe spring 0 that its vertical arm is moved under the pin j and holdsit. If now the hand lever 20 is released the locking lever c is held ina locked position by the bell crank lever m and the brake block 79 movesaway from the locking disk a. The coin being new unsupported falls downthrough the guide slot 37 and the lever 9 is caused to rock by thespring 7 connected with the rod 2, until it is supported by this rod inthe position in which the latter was moved by the load. During thisperiod the lever 9 has rotated the index pointer 14: by means of therack 10 to a number on the scale corresponding to the weight of theperson or 10a When the person steps of? the platform.

the resistance caused by friction when the tooth Z2 is released from thenotch in the locking disk at.

I claim 1. I11 a weighing apparatus, in combination, an indicatorcomprising a pointer, a spindle carrying the pointer, an oscillatorynormally locked lever arranged to operate the index pointer on beingreleased, a look ing disk fixed to the spindle, a locking lever normallyengaging the disk in looking position, a hand lever manually operable torotate the locking lever into the released position, means on thelocking lever and on the hand lever for supporting a coin, and means onthe locking lever for engaging the coin to rotate said lever intoreleased position.

2. In a weighing apparatus, in combination, an indicator comprising apointer, a spindle carrying the pointer, an oscillatory normally lockedlever arranged to operate the index pointer on being released, a lookingdisk fixed to the spindle, a locking lever normally engaging the disk inlocking position, a hand lever manually operable to rotate the lockinglever into the released position, means on the locking lever and on thehand lever for supporting a coin, means on the locking lever forengaging the coin to rotate said lever into released position, a bellcrank lever normally engaged by the oscillatory lever, a spring tendingto rock the bell crank lever and biasing it in engagement with theoscillatory lever, and a pin on the locking lever arranged tobe engagedby the bell crank lever, when the latter is rocked by the spring and thelocking lever has released the locking disk.

3. A weighing apparatus according to claim 1, a pocket mounted on thehand lever,- means spring-pressing the hand lever to one side, an arm onthe locking lever projecting under the pocket and constituting inconjunction with the edge of the hand lever, a holder for a coin wheninserted into the pocket, a slot in the wall of the pocket, a second armon the locking lever arranged to enter the pocket by the slot and to beengaged by the coin when the hand lever is operated, whereby the lockinglever is rocked to release the locking disk, and means to hold thelocking lever when thus oscillated upon the hand lever being allowed toreturn into its normal position and thus moving away from the firstnamed arm of the locking lever so that the coin is permitted to drop,and means on the first named 05- cillatory lever for operating theholding means for the locking lever so as to release the same.

45. In a weighing apparatus the combination of an indicator comprising apointer and a spindle carrying the pointer with an oscillatory normallylocked lever adapted to operate the index pointer on being released,

a locking disk fixed to the said spindle, a locking lever normallyengaging the said disk in locking position, a hand lever normallyoperable to rotate the locking lever into the released position, meanson the locking lever and on the hand lever for supporting a coin, meanson the locking lever for engaging the coin to rotate said lever intoreleased position, a springy arm connected With a hand lever, and afriction 10 block attached to the end of said springy arm and adapted tooperatively engage and rotate the locking lever on the hand lever beingactuated.

FREDERIK CARL CHRISTIAN VOGEL.

